RazorDocument - [0..28)::28 - [<p class="btn bar="foo"></p>]
    MarkupBlock - [0..28)::28
        MarkupTagHelperElement - [0..28)::28 - p[StartTagAndEndTag] - ptaghelper
            MarkupTagHelperStartTag - [0..24)::24 - [<p class="btn bar="foo">] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                Text;[p];
                MarkupTagHelperAttribute - [2..19)::17 - class - DoubleQuotes - Unbound - [ class="btn bar="]
                    MarkupTextLiteral - [2..3)::1 - [ ] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        Whitespace;[ ];
                    MarkupTextLiteral - [3..8)::5 - [class] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        Text;[class];
                    Equals;[=];
                    MarkupTextLiteral - [9..10)::1 - ["] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        DoubleQuote;["];
                    MarkupTagHelperAttributeValue - [10..18)::8
                        MarkupLiteralAttributeValue - [10..13)::3 - [btn]
                            MarkupTextLiteral - [10..13)::3 - [btn] - Gen<Markup> - SpanEditHandler;Accepts:Any
                                Text;[btn];
                        MarkupLiteralAttributeValue - [13..18)::5 - [ bar=]
                            MarkupTextLiteral - [13..14)::1 - [ ] - Gen<Markup> - SpanEditHandler;Accepts:Any
                                Whitespace;[ ];
                            MarkupTextLiteral - [14..18)::4 - [bar=] - Gen<Markup> - SpanEditHandler;Accepts:Any
                                Text;[bar];
                                Equals;[=];
                    MarkupTextLiteral - [18..19)::1 - ["] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        DoubleQuote;["];
                MarkupMinimizedTagHelperAttribute - [19..23)::4 - foo" - Minimized - Unbound - [foo"]
                    MarkupTextLiteral - [19..23)::4 - [foo"] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        Text;[foo];
                        DoubleQuote;["];
                CloseAngle;[>];
            MarkupTagHelperEndTag - [24..28)::4 - [</p>]
                OpenAngle;[<];
                ForwardSlash;[/];
                Text;[p];
                CloseAngle;[>];
